Alumina ceramic plate is made of aluminum oxide ceramics. Alumina is a ceramic material with high thermal conductivity, compressive strength, and thermal shock resistance. It also has a low thermal expansion, making it a suitable material for furnace use in the crucible, tube, and thermo couple sheath form. Alumina ceramic plates can withstand high temperature and maintain high strength and hardness. Alumina ceramic plates also have superb performances in electrical insulation, high chemical resistance, good were resistance and heat resistance, and low thermal expansion. We have various sizes of semi-finished shapes in stock and are able to conduct custom manufacturing for all kinds of alumina components.
1) A variety of specifications available.
2) Satisfy various technical request
3) Lower medium spoilage
4) Good insulation performance and high temperature resistance
5) Stiffness texture
Property | Units | ||||
Al2O3 Content | % | 96 | 98 | 99.5 | 99.7 |
Density | g / cm3 | 3.70 | 3.80 | 3.90 | 3.92 |
Color | – | White | White | Ivory | Ivory |
Compressive Strength @ 25 C | Mpa | 2229 | 2091 | 2512 | 2350 |
Tensile Strength @ 25 C | MPa | 200 | 200 | 248 | 252 |
Flexural Strength @ 25 C | MPa | 331 | 276 | 324 | 320 |
Elastic Modulus @ 25 C | GPa | 290 | 331 | 366 | 380 |
Hardness : Knoop Rockwell | (Gpa) Kg/mm2 R45N |
(11.7) 1196 79 |
(12.5) 1276 77 |
(14) 1428 85 |
(15) 1510 90 |
Thermal Conductivity @ 25 C | W / m-Deg K | 20.8 | 28.1 |
30.7 |
31.6 |
Coefficient of Thermal Expansion @ 25-1000 C | 1 X 10-6 / Deg C |
7.9 | 8.5 | 8.1 | 8.0 |
Specific Heat @ 25 C | cal / g / Deg C | .184 | .184 | .182 | .180 |
Maximum Working Temp. | Deg C | 1650 | 1650 | 1700 | 1700 |
VolumeResitivity @25C @700 C | ohm-cm ohm-cm |
1 X 10-13 1 X 10-8 |
1X 10-13 2.2 X 10-9 |
1 X 10-13 6 x 10-7 |
1 X 10-13 6 x 10-7 |
Dielectric Strength (@Thickness) 100Mils |
ac volts per mil |
350 | 340 | 335 | 330 |
Dielectric Constant 1Mhz @25C |
e’ / eo | 8.6 | 9.4 | 9.7 | 10.0 |
Dissipation Factor 1 Mhz @25C |
Tan Delta | .0004 |
.0003 |
.0003 |
.0002 |
Alumina ceramic plates have a wide variety of applications:
• Alumina plates are hard enough to become armor for personnel or vehicles.
• The corrosion resistivity of alumina plates makes them a great material for the chemical industry.
• Used as a material for industrial furnaces due to its ability to maintain its hardness at high temperatures.
• Used for making parts for CVD thin films, ion implants, photolithography, and semiconductor parts.
• In traditional industries, alumina ceramics are ideal for products such as injector tubes, gas nozzles, and insulators.
Our alumina ceramic plates are exported to USA, Canada, Europe, and South America and Southeast Asia.
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